Massaging machine



Aug. 4, 1931. N. E. GOODRICH 1,317,553

I MASSAGING MACHINE Filed April 27, 1928 2 Sheets-Sheet 1 g- 1931- N. E. GOODRICH I 1,817,553

MASSAGING MACHINE Filed April 2'7, 1928 2 Sheets-Sheet 2 I INVENTOR 15 4627/; i aadr/c'' Patented Au g. 4, 1 931 UNITED STATES ATENT "oFF'IcE NORRIS E. GOODRICH, OF BATTLE CREEK, MICHIGAN, ASSIGNOR TO SAN'I'I ARIU EQUIPMENT COMPANY,'OF BATTLE CREEK, MICHIGAN V MASSAGING MACHINE Application filed April 27,

The main objects of this invention are: First, to provide a massaging machine which is verysimple and compact in structure and at the same time powerful and durable. I

Second, to provide a massaging machine having these advantages in which the speed of the actuated elements may be effectively varied while the machine is in operation.

Further objects and objects pertaining to details and economies of construction and operation will definitely appear from the description to follow.

I accomplish the objects of my invention by the devices and means described in the following specification. The invention is clearly defined and pointed out in the claims.

A device embodying my invention is clearly illustrated in the accompanying drawings .20 forming a part of this specification, in

which:

Fig. 1 is a vertical section of my improved massaging machine on a line corresponding to broken line 11 of Fig. 2.

Fig. 2 is a plan view with the cover of the housing removed.

Fig. 3 is a detail side elevation illustrating an improved applicator and one of the methods of using the machine. I

Fig. 4: is a fragmentary side elevation illustrating another method or manner of using the machine.

Fig. 5 is a fragmentary view partially in section on line 55 of Fig. 6.

Fig. 6 is a fragmentary view in section on line 66 of Fig. 5.

In the embodiment illustrated I provide a housing consisting of a box-like body member 1 and cover 2. This body member 1 is shown as an integral casting and is adapted to receive and support the parts. The motor 3 is mounted within the housing and is of the variable speed type. The control member of the motor is indicated at 1. This control member is connected by a link 5 to an arm .1928. Serial No. 273,246.

6 the spindle 7 arranged, through'onelof the side walls of the housing and having finger piece 8 atits outer end. g

The motor shaft 9 is'provided with a pinion 10 which meshes with the 'crankgdiskll.

At the front of the housing-Imount a pair of rockshafts 12 and 13., these rockshafts being disposed in alignment to project through op.-

posite walls of the housing. At their inner endsthe rockshafts are provided with oppositely disposed arms 14 and 15, these arms being connected by the simultaneously rocked or oscillated in opposite directions. Onlthe outerend-s of the rockshafts are actuated arms .19 provided With rearwardly hooks 20. I v

' With this arrangement the arms 19, are silnultaneously oscillated in opposite directions, the speed of operation being capable of considerable variation through the variable speed motor and the adjustment may pitmen 16 and 17 to the crank pin 18 so that the rockshafts are facing curved applicator V be effected while the motor is in operation;

normally support the grip and receive the thrustfatthe same time permitting torsional flexing. The member 21 is provided with a non-circular portion 24 on which the shank is'mounted so that it is non-rotatably secured to the grip. The eye 25 of-theshank is curved to correspond to the curvature of thehook 20 so that, while the shank may be adjusted longitudinally on the hook, there'is little lost motion and the shank is 'adapted to sustain thethrust; that is, the person using the machine may pull on the hand piece as is-indicated in F ig. 3 or may push the shank, sustaining the thrust when the user is pushing thereon, at the same time permitting limited flexing or twisting movement. The hand piece may also be swung at an angle to the plane or reciprocation of the oscillating member thereby varying in character the stroke. r

I have illustrated and described my improvements in an embodiment which I consider highly satisfactory. I have not attempted to illustrate or describe certain modifications and adaptations which I contem plate as it is believed that this disclosure will enable those skilled in the art to embody or I adapt my improvements as may be desired.

Having thus described my invention what I claim as new and desire to secure by Letters Patent is:

1. In a massaging machine, the combination of a housing, a motor disposed within said housing and provided with a shaft having a pinion thereon, a gear disposed within said housing in mesh with said pinion on said inotor shaft, and provided with a crank pin, rockshafts disposed in alignment to project from opposite sides of said housing, said rockshafts being provided with oppositely disposed inner arms, pitmen connecting said arms to said crank pin, and actuated arms on the outer ends of said rockshafts.

2. In a massaging machine, the combination of a housing, a motor within said housing, rockshafts disposed'in alignment and projecting from said housing and having oppositely disposed inner arms, a crank having driving connection to said motor, pitmen connecting said crank to said inner arms of said rockshafts, and actuated members on' the outer ends of said rockshafts.

3. In a massaging machine the combination of a pair of oscillating driven members provided with curved applicator attaching means, and applicators provided with resilient shanks non-rotatably secured thereto and constituting thrust cushion members while permitting limited twisting movement.

4. In a massaging machine, the combination of an oscillating arm provided with a curved rearwardly facing hook, and a hand piece having a shank non-rotatably secured to the hand piece and provided with an eye closely fitting and slidably engaging said hook, said shank being of resilient material and constituting a cushion member for said hand piece and being of suflicient rigidity to sustain end thrusts.

5. In a massaging machine, the combination of an oscillating arm provided with a curved rearwardly facing hook, and a hand piece having a shank non-rotatably secured to the hand piece and provided with an eye closely fitting and slidably engaging said hook, said shank being of suflicient rigidity to sustain end thrusts.

In witness whereof I have hereunto set my hand.

NORRIS E. GOODRICI-I. 

